TM 1-1520-238-MTF
2-22
PROCEDURE
TROUBLESHOOTING
REFERENCE
AFTER STARTING APU (CONT)
(c) MAN-2182-500 switch –
MAN.
(d) Frequency – Select and
tune to a continuous wave
station, if applicable.
(e) TEST-TONE switch –
TONE. Note 1 kHz audio
tone in headset.
(2) ADF operation.
(a) Mode selector – ADF.
(b) MAN-2182-500 switch –
MAN.
(c) AUDIO control – As
desired.
NOTE
If thunderstorms are in the area, the ADF
will momentarily point in the direction of the
storm. This is not an indication of failure in
the system.
(d) Note position of HSI No. 2
pointer and RMI pointer.
(e) TEST-TONE switch –
Momentarily TEST.
